xref: /dalvik/libcore/security/src/main/java/org/apache/harmony/security/asn1/ASN1Time.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

/**
* @author Stepan M. Mishura
* @version $Revision$
*/

package org.apache.harmony.security.asn1;

import java.io.IOException;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.TimeZone;


/**
 * Abstract class to represent ASN.1 time types
 *
 * @see <a href="http://asn1.elibel.tm.fr/en/standards/index.htm">ASN.1</a>
 */

public abstract class ASN1Time extends ASN1StringType {

    /**
     * TODO Put ctor description here
     *
     * @param tagNumber
     */
    public ASN1Time(int tagNumber) {
        super(tagNumber);
    }

    public Object getDecodedObject(BerInputStream in) throws IOException {

        // TODO optimize me:
        // It makes sense use calendar instance instead of times array
        GregorianCalendar c = new GregorianCalendar(TimeZone.getTimeZone("GMT")); //$NON-NLS-1$

        c.set(Calendar.YEAR, in.times[0]);
        c.set(Calendar.MONTH, in.times[1]-1);
        c.set(Calendar.DAY_OF_MONTH, in.times[2]);
        c.set(Calendar.HOUR_OF_DAY, in.times[3]);
        c.set(Calendar.MINUTE, in.times[4]);
        c.set(Calendar.SECOND, in.times[5]);
        c.set(Calendar.MILLISECOND, in.times[6]);

        return c.getTime();
    }
}